package cy.security.demo.async;

import lombok.extern.slf4j.Slf4j;
import org.apache.commons.lang.RandomStringUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Component;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RestController;
import org.springframework.web.context.request.async.DeferredResult;

import java.util.Random;
import java.util.concurrent.Callable;

/**
 * @Author: ciyuan
 * @Date: 2019/5/14 16:53
 */
@Slf4j
@RestController
public class AsyncController {

    @Autowired
    private MockQueue mockQueue;

    @Autowired
    private DeferredResultHolder deferredResultHolder;

    @GetMapping("/order")
    public Callable<String> order() throws InterruptedException {
        log.info("主线程开始");
        Callable<String> result = new Callable<String>() {
            @Override
            public String call() throws Exception {
                log.info("副线程开始");
                Thread.sleep(1000);
                log.info("副线程返回");
                return "success";
            }
        };

        log.info("主线程返回");
        return result;
    }

    @GetMapping("/orderDefer")
    public DeferredResult<String> orderDeferr(){
        log.info("主线程开始");
        String orderNumber = RandomStringUtils.randomNumeric(8);
        mockQueue.setPlaceOrder(orderNumber);
        DeferredResult<String> result = new DeferredResult<>();
        deferredResultHolder.getMap().put(orderNumber, result);
        log.info("主线程返回");
        return result;
    }

}
